Motorola roundie

[Yamamaya42]

That “flashing” is most likely due to the DVM being disrupted by the horizontal pulses on that line, an analog meter would not do that.

[Username1]

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Originally Posted by Yamamaya42

That “flashing” is most likely due to the DVM being disrupted by the horizontal pulses on that line, an analog meter would not do that.

I'm wondering if the flashing is either the peaks that it can't sample & display
properly, or that he is measuring DC, and the meter is seeing that sign wave
(or what it thinks is an AC component and it's alerting the driver that there
is a curve in the road). At one point I was going to ask Timmy to put his
meter on AC & see if it would read some of those signals (scope screen
shots with the P-P signals on it) But not sure what would happen) I
gotta try it one day - I was thinking since he don't have a scope
the meter may give a P-P reading on the signal. You know
there was an old fart at the shop I worked at & although
we had 2 scopes, he did all his work with a meter &
a pencil shaped signal injector and a hand held
audio amplifier with a detector diode you
could switch in or out..... No matter the
circuit he would poke that thing on it
and listen, if he was working on Vert.
he listened for 60hz, if it was horiz
he listened for the whistle. No
HV stuff or course.....
Just goes to show, you can
always find what you need
if you get a little inventive....
As cranky as Augie was,
he was pretty cool &
Smart.....



..

[Yamamaya42]

I did have an old CONAR Model 255 oscilloscope that I was willing to give to him for the price of shipping, but he turned it down

it would have come in handy right now.

I gave it to someone else :/

[timmy]

Believe me if I still had all my color sets I would get a scope and learn how to use it but as hard as it is to diagnose these problems I won’t be getting one I have a lot of money into this set along with a spare crt and I just cannot justify spending anymore on this set unless it’s parts.

[timmy]

I had tried the new xtal and I had got color lock but it only had mostly red but I couldn’t adjust the oscillator because it was stuck and cracked so I’m going to put the new xtal back in and do the afc procedure and see what results I get being I can adjust the oscillator coil now.

[timmy]

With the new xtal the colors are alittle more organized but still not there the picture on the screen looks like a really bad purity setup

[timmy]

Using the color gen the stripes have different colors from top to bottom with the new xtal the old xtal the color bars are moving and distorted

[Yamamaya42]

post pix plz.

[timmy]

If you have an email I can send it to you I can’t put any pics on here it wants me to resize and each time it won’t accept it I have been trying but I won’t go

[Yamamaya42]

mine is [email protected]

[Yamamaya42]

Closer to the correct freq, but still no lock.
http://suzaku.live-evil.org/IMG_1027.JPG
http://suzaku.live-evil.org/IMG_1029.JPG
http://suzaku.live-evil.org/IMG_1028.JPG

Also, the color shown (rainbow bars) look very faint, should be much more pronounced, as you saw on my pics. Not sure if the burst amp has something to work with there, if color is turned all up, and that's as strong as is shows, that could be part of the problem.

[timmy]

Originally Posted by Yamamaya42

Closer to the correct freq, but still no lock.
http://suzaku.live-evil.org/IMG_1027.JPG
http://suzaku.live-evil.org/IMG_1029.JPG
http://suzaku.live-evil.org/IMG_1028.JPG

Also, the color shown (rainbow bars) look very faint, should be much more pronounced, as you saw on my pics. Not sure if the burst amp has something to work with there, if color is turned all up, and that's as strong as is shows, that could be part of the problem.

So is this looking like the oscillator

[old_tv_nut]

Not sure if I'm following what the pics are showing.
If the color distortion is stationary but different in different parts of the screen it's not a color lock problem; more like a CRT purity problem.

[old_coot88]

Looks like the purity's severely off. Has there ever been a set-up and/or degaussing been done to the set? (I haven't read back thru the whole thread)

[timmy]

So I degaussed and got a picture but looks like the blue is missing could only get a picture with the new xtal the old one I couldn’t do I’m assuming the old xtal was bad but the blue no color adjustments were done